Remove RichMessageBase which cause Messenger doesn't work.

src/Infrastructure/BotSharp.Abstraction/Messaging/IRichMessage.cs

@@ -2,6 +2,5 @@ namespace BotSharp.Abstraction.Messaging;
 
 public interface IRichMessage
 {
-    string Type { get; }
     string Text { get; set; }
 }

src/Infrastructure/BotSharp.Abstraction/Messaging/Models/RichContent/QuickReplyMessage.cs

@@ -1,8 +1,8 @@
 namespace BotSharp.Abstraction.Messaging.Models.RichContent
 {
-    public class QuickReplyMessage : RichMessageBase, IRichMessage
+    public class QuickReplyMessage : IRichMessage
     {
-        public override string Type => "quick reply";
+        public string Text { get; set; } = string.Empty;
 
         [JsonPropertyName("quick_replies")]
         public List<QuickReplyElement> QuickReplies { get; set; } = new List<QuickReplyElement>();

src/Infrastructure/BotSharp.Abstraction/Messaging/Models/RichContent/Template/ButtonTemplateMessage.cs

@@ -3,12 +3,12 @@ namespace BotSharp.Abstraction.Messaging.Models.RichContent.Template
     /// <summary>
     /// https://developers.facebook.com/docs/messenger-platform/send-messages/buttons
     /// </summary>
-    public class ButtonTemplateMessage : RichMessageBase, IRichMessage, ITemplateMessage
+    public class ButtonTemplateMessage : IRichMessage
     {
-        public override string Type => "template";
+        public string Text { get; set; } = string.Empty;
 
         [JsonPropertyName("template_type")]
-        public override string TemplateType => "button"; 
+        public string TemplateType => "button";
         public List<ButtonElement> Buttons { get; set; } = new List<ButtonElement>();
     }
 

src/Infrastructure/BotSharp.Abstraction/Messaging/Models/RichContent/Template/CouponTemplateMessage.cs

@@ -4,18 +4,16 @@ namespace BotSharp.Abstraction.Messaging.Models.RichContent.Template;
 /// Coupon Template
 /// https://developers.facebook.com/docs/messenger-platform/send-messages/template/coupon
 /// </summary>
-public class CouponTemplateMessage : RichMessageBase, IRichMessage, ITemplateMessage
+public class CouponTemplateMessage : IRichMessage, ITemplateMessage
 {
-    public override string Type => "template";
-
-    [JsonPropertyName("template_type")]
-    public override string TemplateType => "coupon";
-
     [JsonIgnore]
-    public override string Text { get; set; }
+    public string Text { get; set; }
     public string Title { get; set; }
     public string Subtitle { get; set; }
 
+    [JsonPropertyName("template_type")]
+    public string TemplateType => "coupon";
+
     [JsonPropertyName("coupon_code")]
     public string CouponCode { get; set; }
 

src/Infrastructure/BotSharp.Abstraction/Messaging/Models/RichContent/Template/MultiSelectTemplateMessage.cs

@@ -1,8 +1,8 @@
 namespace BotSharp.Abstraction.Messaging.Models.RichContent.Template
 {
-    public class MultiSelectTemplateMessage : RichMessageBase, IRichMessage
+    public class MultiSelectTemplateMessage : IRichMessage
     {
-        public override string Type => "template";
+        public string Text { get; set; } = string.Empty;
 
         [JsonPropertyName("template_type")]
         public string TemplateType => "multi-select";

src/Infrastructure/BotSharp.Abstraction/Messaging/Models/RichContent/Template/TemplateMessageBase.cs

@@ -1,15 +1,12 @@
 namespace BotSharp.Abstraction.Messaging.Models.RichContent.Template
 {
-    public class TemplateMessageBase<T> : RichMessageBase
+    public class TemplateMessageBase<T>
     {
         [JsonIgnore]
         public string Text { get; set; }
 
-        public override string Type => "template";
-
         [JsonPropertyName("template_type")]
         public virtual string TemplateType => string.Empty;
-
         public T[] Elements { get; set; }
     }
 }

src/Infrastructure/BotSharp.Abstraction/Messaging/Models/RichContent/TextMessage.cs

@@ -1,8 +1,8 @@
 namespace BotSharp.Abstraction.Messaging.Models.RichContent;
 
-public class TextMessage : RichMessageBase, IRichMessage
+public class TextMessage : IRichMessage
 {
-    public string Type => "text";
+    public string Text { get; set; } = string.Empty;
 
     public TextMessage(string text)
     {

src/Infrastructure/BotSharp.Abstraction/Messaging/RichMessageBase.cs

@@ -1,11 +0,0 @@
-namespace BotSharp.Abstraction.Messaging;
-
-public class RichMessageBase
-{
-    public virtual string Type { get; }
-
-    public virtual string Text { get; set; }
-
-    [JsonPropertyName("template_type")]
-    public virtual string TemplateType { get; }
-}

src/Plugins/BotSharp.Plugin.ChatHub/Hooks/ChatHubConversationHook.cs

@@ -1,4 +1,5 @@
 using BotSharp.Abstraction.Messaging;
+using BotSharp.Abstraction.Messaging.Models.RichContent;
 using Microsoft.AspNetCore.SignalR;
 
 namespace BotSharp.Plugin.ChatHub.Hooks;
@@ -24,7 +25,7 @@ public class ChatHubConversationHook : ConversationHookBase
         var welcomeTemplate = agent.Templates.FirstOrDefault(x => x.Name == "welcome");
         if (welcomeTemplate != null)
         {
-            var messages = JsonSerializer.Deserialize<RichMessageBase[]>(welcomeTemplate.Content, new JsonSerializerOptions
+            var messages = JsonSerializer.Deserialize<TextMessage[]>(welcomeTemplate.Content, new JsonSerializerOptions
             {
                 PropertyNameCaseInsensitive = true
             });

src/Plugins/BotSharp.Plugin.MetaMessenger/MessagingModels/AttachmentMessage.cs

@@ -10,6 +10,4 @@ public class AttachmentMessage : IRichMessage
 
     [JsonPropertyName("attachment")]
     public AttachmentBody Attachment { get; set; }
-
-    public string Type => "template";
 }

src/Plugins/BotSharp.Plugin.MetaMessenger/Services/MessageHandleService.cs

@@ -107,10 +107,11 @@ public class MessageHandleService
         // Response to user
         foreach(var reply in replies)
         {
+            var content = JsonSerializer.Serialize(reply, _serializerOptions);
             await messenger.SendMessage(setting.ApiVersion, setting.PageId,
                 new SendingMessageRequest(setting.PageAccessToken, recipient)
                 {
-                    Message = JsonSerializer.Serialize(reply, _serializerOptions)
+                    Message = content
                 });
             Thread.Sleep(500);
         }